Siphon water-closet.



A. COCHRAN.

SIPHON WATER CLOSET.

APPLICATION FILED OCT. 15, 191 3.

Patented Feb. 6, 1917.

ANDREW COCERAN, OF TRENTON, NEW JERSEY.

SIPI'ION "WATER-CLOSET.

Application filed ()ctober 15, 1913.

To all whom it may concern:

Be it known that 1, ANDREW COCI-IRAN, a citizen of the United States, and a resident of Trenton, Mercer county, New Jersey, have invented certain Improvements in Siphon Water-Closets, of which the following is a specification.

My invention relates to siphon water closets, and my present improvements have in been applied to a bowl of the reverse trap type. Siphon water closets of the reverse trap type have usually been provided with jets. These jet passages generally open into the extreme bottom of the bowl; contain water as long as water is in the bowl, and are liable to freezing in cold weather, resulting in fracture of the walls forming the ct passage. The object of my present invention is to provide a siphon jet structure with jet 2o passages at the side of and communicating with the intake leg of the siphon portion of the structure; such jets opening into said ascending leg at a point below the normal level of water in the bowl when the trap is sealed. Their position is such that should the water in the trap freeze, communication with the jets will be such as to permit proper expansion of the water due to freezing, or if the water in the bowl evaporates,

from long standing in an empty house for instance, the jet passages will drain into the siphon passages and avoid all danger of freezing. Again, if it be desired to empty the bowl of water, when shutting a house for a long or short period, the water will readily drain from the jet passages when the bowl is emptied.

These and other features of my invention are more fully described hereinafter, referonce being had to the accompanying drawings, in which:

Figure 1, is a longitudinal section of a water closet bowl made in accordance with my present invention, and

Fig. 2, is a vertical sectional view taken on the line 22, Fig. 1.

The action of water closet bowls of the siphon jet type is well known and requires no particular description or extended ref erence. In the drawings illustrating the present structure, 1 represents the main bowl, having the usual rim 2, with apertures 3 through which water may be discharged over the inner Wall-surface of the bowl.

The intake leg of the siphon passage is in dicated at at and the discharge leg is indi- I Specification of Letters Patent.

cated at 5. The inlet for water to flush the bowl is indicated at 7 the opening there shown receiving a suitable spud (not shown) through which water may be delivered from a flush-tank of any approved type or design.

lVithin the body of the bowl and in communication with this inlet 7, is a chamber 8 having an outlet 9 leading to the rim 2, and on opposite sides of said chamber 8, passages 10 are provided which extend substantially parallel with the axis of the intake leg of the siphon and open into said leg through ports 11 at a point about intermediate the bottom of the bowl and the height of the dam 12 forming the liquid seal therein and abovethe lip 13 of the intake leg. These passages, discharging a considerable quantity of water into the intake leg of the siphon, materially assist in effecting siphonic action, performing in this connection the usual function of a jet employed with a closet of this type. They are provided with ports, as indicated, so situated that their streams will meet about the center of the passage of the intake leg below the dam and effect a sudden lift of the water in said leg with a subsequent discharge of a considerable volume over the dam 12; choking the passage of the discharge leg quickly, and resulting in the rarefaction of the air present and a quick siphonic action.

By employing the pair of siphon passages on the exterior of the wall of the structure adjacent the intake leg, the closet is relatively inexpensive to make, and there is much less loss due to defective construction as so frequently happens when centrally disposed jets are employed whose proper placement requires considerable skill in the formation of the water closet bowl.

Furthermore, the placing of a pair of jet passages in the position noted, that is in the outer side walls, where they are independent of the interior construction of the closet and open into the intake leg at a point above the bottom of the bowl, insures the ready and complete drainage of the same should the water evaporate from the bowl, or should it be desired to empty the bowl when it becomes necessary to close a house or building in which such form of closet is used.

While the outlets from these jet passages are so disposed that the streams thrown therefrom will meet at a point at or adjacent the dam, they may be placed in any position flushing rim, a siphon conduit leading from said bowland comprising intake and discharge legs, passages formed in the walls of the closet structure on opposite sides of the intake leg of the siphon conduit, said pas sages leading from the sides of the waterreceiving chamber at the rear of the bowl and opening at their lower ends into said intake leg above the lip of the same and dis charging across said leg, and an inlet for the delivery of flushing water to said shallow water-receiving chamber.

2. A water closet bowl of the siphon'type having a hollow flushing rim, an enlarged shallow water-receiving chamber in communication with said flushing rim, a siphon conduit leading from said bowl and comprising intake and discharge legs, said water-receiving chamber being disposed at the rear of the bowl above the siphon conduit and wholly within the lines of the rear portion of the body ofthe bowl, an inlet for the delivery of flushing water to the top of said waterreceiving chamber, and passages formed in the walls of the closet structure on opposite sides of the intake leg of the siphon conduit and substantially paralleling the same, said passages leading from the sides of the water-receiving chamber and opening into said intake leg at their lower ends and discharging upwardly and across the latter, said passage outlets being disposed above the lip of the intake leg of the siphon conduit.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ANDREW oocnnan Witnesses: ELLIS L'. PIERSON,' CATHARINE PIPPEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

